Hip Pocket Aeronautics Plans Gallery - Curtiss O-1B "Falcon" https://hpa.aeromodelling.gr/plans/details.php?image_id=373 Thu, 27 Aug 2026 16:37:21 GMT https://hpa.aeromodelling.gr/plans/data/thumbnails/112/c-11_curtiss_a-3_o1-b_falcon.jpg Curtiss O-1B "Falcon" https://hpa.aeromodelling.gr/plans/details.php?image_id=373